SkRectShaderImageFilter: add a new factory method which takes a CropRect.
This will become the preferred API, and the old Create method will be deprecated.

R=reed@google.com, reed
BUG=

Review URL: https://codereview.chromium.org/26220004

git-svn-id: http://skia.googlecode.com/svn/trunk/src@11773 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/effects/SkRectShaderImageFilter.cpp b/effects/SkRectShaderImageFilter.cpp
index 37d6af2..a240907 100644
--- a/effects/SkRectShaderImageFilter.cpp
+++ b/effects/SkRectShaderImageFilter.cpp
@@ -31,6 +31,11 @@
     return SkNEW_ARGS(SkRectShaderImageFilter, (s, &cropRect));
 }
 
+SkRectShaderImageFilter* SkRectShaderImageFilter::Create(SkShader* s, const CropRect* cropRect) {
+    SkASSERT(s);
+    return SkNEW_ARGS(SkRectShaderImageFilter, (s, cropRect));
+}
+
 SkRectShaderImageFilter::SkRectShaderImageFilter(SkShader* s, const CropRect* cropRect)
   : INHERITED(NULL, cropRect)
   , fShader(s) {